package com.atguigu.mall.mallproduct.exception;

import com.atguigu.common.exception.BizCodeEnume;
import com.atguigu.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;
import java.util.Map;

/**
 * 集中处理所有的异常
 *
 * @author fuc
 * @create 2020-10-25
 */
@Slf4j
@RestControllerAdvice(basePackages = "com.atguigu.mall.mallproduct.controller")
public class MallExceptionControllerAdvice {

  @ExceptionHandler(value = MethodArgumentNotValidException.class)
  public R handleVaildException(MethodArgumentNotValidException e) {
    log.error("数据校验出现问题[{}],异常类型[{}]", e.getMessage(), e.getClass());
    BindingResult bindingResult = e.getBindingResult();
    Map<String, String> errorMap = new HashMap<>(1);
    bindingResult
        .getFieldErrors()
        .forEach(
            fieldError -> {
              errorMap.put(fieldError.getField(), fieldError.getDefaultMessage());
            });
    return R.error(BizCodeEnume.VAILD_EXCEPTION.getCode(), BizCodeEnume.VAILD_EXCEPTION.getMsg())
        .put("data", errorMap);
  }

  @ExceptionHandler(value = Throwable.class)
  public R handleException(Throwable throwable) {
    return R.error(BizCodeEnume.UNKNOW_EXCEPTION.getCode(), BizCodeEnume.UNKNOW_EXCEPTION.getMsg());
  }

}
